# Luminometer vs Light Meter

The clearest difference is ads: Light Meter at none against Luminometer's shown. Light Meter also leads on iOS requirement (13.0 vs 16.6). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Luminometer sells 2 in-app purchases, starting at $2.99 per 7 days and Light Meter sells 3 in-app purchases, starting at $9.00 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 3.5 for Luminometer against 3.6 for Light Meter. Both are backed by a comparable volume of ratings — 16 and 15 respectively.

Luminometer ships an update every 2 months, Light Meter every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Luminometer | Light Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (16 ratings)](https://appshunter.io/ios/app/luminometer-lux-light-meter/id6446325225/reviews) | **[3.6 (15 ratings)](https://appshunter.io/ios/app/light-meter-lux-light-meter/id6751223352/reviews)** |
| Number of ratings | **16** | 15 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 13 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [27GROUP](https://appshunter.io/developer/1589401961) | [琦 崔](https://appshunter.io/developer/1831666610) |

## What reviewers say

### Luminometer

[App page](https://appshunter.io/ios/app/luminometer-lux-light-meter/id6446325225)

Transform your device into a professional light meter to measure luminosity in lux and foot-candles. Achieve optimal illumination for any space, from greenhouses to workspaces, ensuring comfort and preventing glare. Calibrated with reference equipment for precise and reliable readings.

**Highlights:** Measures lux and foot-candle units, Internal Exposure Compensation for accuracy, Camera view for measured area, Calibrated with reference equipment, Versatile for various lighting conditions, Helps set optimal illumination levels

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Lifetime | $9.99 | one-time |


### Light Meter

[App page](https://appshunter.io/ios/app/light-meter-lux-light-meter/id6751223352)

This tool precisely measures light intensity in Lux and Footcandles, offering data for photography, plant care, and environmental analysis. It provides photography recommendations and generates data reports for various applications.

**Highlights:** Multi-mode metering system, Real-time color temperature capture, Photography decision engine, Plant cultivation light monitoring, Space optimization analysis, Data report generation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly membership | $9.00 | per 7 days |
| Annual Membership | $14.99 | one-time |
| Lifetime membership | $29.99 | one-time |


## Frequently asked questions

### Is Luminometer free?

Luminometer is free to download, with in-app purchases available.

### Is Light Meter free?

Light Meter is free to download, with in-app purchases available.

### Which has better reviews, Luminometer or Light Meter?

Light Meter is rated higher. Luminometer averages 3.5 out of 5 from 16 ratings, while Light Meter averages 3.6 from 15 ratings.

### Do Luminometer or Light Meter have ads?

Luminometer shows ads; Light Meter does not.

### Which is updated more often, Luminometer or Light Meter?

Luminometer ships an update every 2 months, and Light Meter every 6 weeks. Most recently, Luminometer was updated on November 3, 2026 and Light Meter on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*